http://www.trade-ideas.com/Glossary/Golden_Cross.html

The one year daily chart for CUU does not show a golden cross yet, despite what some ASS-teroids in deep space may think (LOL - sorry can't resist). If you look on any web site with charts and ask for the 50 and 200 ma you will see that they are starting to converge, but the 200 ma is still above the 50 ma. If you look at the weekly charts you'll see that the 50 ma has been above the 200 ma since January of last year.

Some sites give moving averages based on calendar days because it's easier to compute. BUT, any real trader will use only trading days.